xref: /llvm-project/llvm/test/Analysis/ValueTracking/powi-nneg.ll (revision 50e80e06d1d4d1de200a3b349fcdd0dd0d0eb66d)
1*50e80e06SYingwei Zheng; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
2*50e80e06SYingwei Zheng; RUN: opt -passes=instsimplify -S < %s | FileCheck %s
3*50e80e06SYingwei Zheng
4*50e80e06SYingwei Zhengdefine i1 @test_powi_even_exp(float %x) {
5*50e80e06SYingwei Zheng; CHECK-LABEL: define i1 @test_powi_even_exp(
6*50e80e06SYingwei Zheng; CHECK-SAME: float [[X:%.*]]) {
7*50e80e06SYingwei Zheng; CHECK-NEXT:    ret i1 false
8*50e80e06SYingwei Zheng;
9*50e80e06SYingwei Zheng  %y = call float @llvm.powi.f32(float %x, i32 8)
10*50e80e06SYingwei Zheng  %cmp = fcmp olt float %y, 0.0
11*50e80e06SYingwei Zheng  ret i1 %cmp
12*50e80e06SYingwei Zheng}
13*50e80e06SYingwei Zheng
14*50e80e06SYingwei Zhengdefine i1 @test_powi_base(float nofpclass(ninf nnorm nsub nzero) %x, i32 %e) {
15*50e80e06SYingwei Zheng; CHECK-LABEL: define i1 @test_powi_base(
16*50e80e06SYingwei Zheng; CHECK-SAME: float nofpclass(ninf nzero nsub nnorm) [[X:%.*]], i32 [[E:%.*]]) {
17*50e80e06SYingwei Zheng; CHECK-NEXT:    ret i1 false
18*50e80e06SYingwei Zheng;
19*50e80e06SYingwei Zheng  %y = call float @llvm.powi.f32(float %x, i32 %e)
20*50e80e06SYingwei Zheng  %cmp = fcmp olt float %y, 0.0
21*50e80e06SYingwei Zheng  ret i1 %cmp
22*50e80e06SYingwei Zheng}
23*50e80e06SYingwei Zheng
24*50e80e06SYingwei Zhengdefine i1 @test_powi_base_without_nsz(float nofpclass(ninf nnorm nsub) %x, i32 %e) {
25*50e80e06SYingwei Zheng; CHECK-LABEL: define i1 @test_powi_base_without_nsz(
26*50e80e06SYingwei Zheng; CHECK-SAME: float nofpclass(ninf nsub nnorm) [[X:%.*]], i32 [[E:%.*]]) {
27*50e80e06SYingwei Zheng; CHECK-NEXT:    [[Y:%.*]] = call float @llvm.powi.f32.i32(float [[X]], i32 [[E]])
28*50e80e06SYingwei Zheng; CHECK-NEXT:    [[CMP:%.*]] = fcmp olt float [[Y]], 0.000000e+00
29*50e80e06SYingwei Zheng; CHECK-NEXT:    ret i1 [[CMP]]
30*50e80e06SYingwei Zheng;
31*50e80e06SYingwei Zheng  %y = call float @llvm.powi.f32(float %x, i32 %e)
32*50e80e06SYingwei Zheng  %cmp = fcmp olt float %y, 0.0
33*50e80e06SYingwei Zheng  ret i1 %cmp
34*50e80e06SYingwei Zheng}
35*50e80e06SYingwei Zheng
36*50e80e06SYingwei Zhengdefine float @pr31702(float %x, i32 %n) {
37*50e80e06SYingwei Zheng; CHECK-LABEL: define float @pr31702(
38*50e80e06SYingwei Zheng; CHECK-SAME: float [[X:%.*]], i32 [[N:%.*]]) {
39*50e80e06SYingwei Zheng; CHECK-NEXT:  entry:
40*50e80e06SYingwei Zheng; CHECK-NEXT:    [[CALL1:%.*]] = call float @llvm.powi.f32.i32(float -0.000000e+00, i32 [[N]])
41*50e80e06SYingwei Zheng; CHECK-NEXT:    [[CALL2:%.*]] = call float @llvm.fabs.f32(float [[CALL1]])
42*50e80e06SYingwei Zheng; CHECK-NEXT:    ret float [[CALL2]]
43*50e80e06SYingwei Zheng;
44*50e80e06SYingwei Zhengentry:
45*50e80e06SYingwei Zheng  %call1 = call float @llvm.powi.f32(float -0.0, i32 %n)
46*50e80e06SYingwei Zheng  %call2 = call float @llvm.fabs.f32(float %call1)
47*50e80e06SYingwei Zheng  ret float %call2
48*50e80e06SYingwei Zheng}
49*50e80e06SYingwei Zheng
50*50e80e06SYingwei Zhengdeclare float @llvm.powi.f32(float, i32)
51*50e80e06SYingwei Zhengdeclare float @llvm.fabs.f32(float)
52